Carriage Drive Mechanism; Table 2-1. Carriage Drive Motor Specifications - Epson 4003353 Service Manual

Stylus Color Service Manual

2.2.2 Carriage Drive Mechanism

The timing belt attached to the base of the carriage unit is driven by the carriage motor, causing the
carriage unit to move along the carnage guide shaft left to right, or vice versa. The carriage drive
motor on this printer is a 4-phase, 200-pole, hybrid-type stepping motor mechanism, allowing the
printer to stop the carriage or change the carriage movement at any position. The position of the
carriage is recognized by the home position sensor, and position information is fed back to the
carriage drive control circuit. This carriage motor is driven by the motor driver IC SLA7041 (see
Section 2.3.2.3 for more information).

Table 2-1. Carriage Drive Motor Specifications

I
Item
Motor Type
Drive Voltage
Coil Resistance'
Drive Frequency
Excitation Mode
In the following table, 2W1-2 phase means the 1/8 2-2 phase drive control. ( ) is the value of 2-2
phase.
CR Speed Frequency
Mode 1
4800(2400)
Mode 2
2400(1200)
Mode 3
(40 CPS)
CR Motor
, . . . .
Rev. A
I
10.0 Q f
960-4800 PPS
Table 2-2. Drive Terms
phase
Constant Area: 1-2 phase
phase
Constant Area: 1-2 phase
Area: 2W1-2 phase
Constant
Figure 2-5. Carriage Drive Mechanism
Description
Ace. 40(5)+1 10(55)
I
I
I
Deceleration
Step
40(5)+40(20)
16(2)
2-5